CVE-2026-26153: CWE-125: Out-of-bounds Read in Microsoft Windows 10 Version 1809
Out-of-bounds read in Windows Encrypting File System (EFS) allows an authorized attacker to elevate privileges locally.
AI Analysis
Technical Summary
CVE-2026-26153 is an out-of-bounds read vulnerability (CWE-125) affecting the Windows Encrypting File System (EFS) component in Windows 10 Version 1809 (build 10.0.17763.0). An authorized local attacker can exploit this flaw to elevate privileges on the affected system. The vulnerability has been assigned a CVSS v3.1 base score of 7.8, indicating high severity with impacts on confidentiality, integrity, and availability. Microsoft has released an official fix to address this issue, as documented in their security update guide.
Potential Impact
Successful exploitation allows an authorized local attacker to elevate their privileges, potentially gaining higher-level access on the affected Windows 10 Version 1809 system. This can lead to full system compromise depending on the privileges obtained. The vulnerability impacts confidentiality, integrity, and availability of the system.
Mitigation Recommendations
Microsoft has released an official fix for this vulnerability. Users and administrators should apply the security update provided by Microsoft as soon as possible to remediate this issue. Refer to the Microsoft security update guide at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26153 for detailed patch information and deployment instructions.
CVE-2026-26153: CWE-125: Out-of-bounds Read in Microsoft Windows 10 Version 1809
Description
Out-of-bounds read in Windows Encrypting File System (EFS) allows an authorized attacker to elevate privileges locally.
CVSS v3.1
Score 7.8high
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-26153 is an out-of-bounds read vulnerability (CWE-125) affecting the Windows Encrypting File System (EFS) component in Windows 10 Version 1809 (build 10.0.17763.0). An authorized local attacker can exploit this flaw to elevate privileges on the affected system. The vulnerability has been assigned a CVSS v3.1 base score of 7.8, indicating high severity with impacts on confidentiality, integrity, and availability. Microsoft has released an official fix to address this issue, as documented in their security update guide.
Potential Impact
Successful exploitation allows an authorized local attacker to elevate their privileges, potentially gaining higher-level access on the affected Windows 10 Version 1809 system. This can lead to full system compromise depending on the privileges obtained. The vulnerability impacts confidentiality, integrity, and availability of the system.
Mitigation Recommendations
Microsoft has released an official fix for this vulnerability. Users and administrators should apply the security update provided by Microsoft as soon as possible to remediate this issue. Refer to the Microsoft security update guide at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26153 for detailed patch information and deployment instructions.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-02-11T16:24:51.135Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26153","vendor":"Microsoft"}]
Threat ID: 69de7a1682d89c981fd6a630
Added to database: 4/14/2026, 5:32:06 PM
Last enriched: 5/19/2026, 10:33:35 AM
Last updated: 5/29/2026, 11:21:53 AM
Views: 52
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